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Figure 1. Tunneling of apple fruit caused by larvae of the codling moth. Codling moth is the most important insect pest of apple and pears in North America. Damage is done by the larvae, which are cream-colored caterpillars that tunnel fruit and produce âwormyâ apples (Figure 1).
The 'cod worm', which is often found in cod, is also found in many other species. Its scientific name is Phocanema decipiens; other outdated scientific names are Porrocaecum decipiens or Terranova decipiens. It grows up to 4 cm long in fish, and varies in colour from creamy white to dark brown.